| Document And Entity Information - shares | 9 Months Ended | |
| Sep. 30, 2020 | Aug. 25, 2021 | |
| Document Information Line Items | ||
| Entity Registrant Name | Apex 11 Inc. | |
| Document Type | 10-Q | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Common Stock, Shares Outstanding | 15,647,216 | |
| Amendment Flag | false | |
| Entity Central Index Key | 0001578329 | |
| Entity Filer Category | Non-accelerated Filer | |
| Document Period End Date | Sep. 30, 2020 | |
| Document Fiscal Year Focus | 2020 | |
| Document Fiscal Period Focus | Q3 | |
| Entity Small Business | true | |
| Entity Emerging Growth Company | false | |
| Entity Shell Company | true | |
| Entity Interactive Data Current | No |
| CONDENSED BALANCE SHEETS - USD ($) | Sep. 30, 2020 | Dec. 31, 2019 |
| CURRENT LIABILITIES | ||
| Accrued expenses | $ 1,535 | $ 0 |
| Controlling stockholder payable | 16,153 | 0 |
| Total liabilities | 17,688 | 0 |
| STOCKHOLDERS' EQUITY (DEFICIENCY) | ||
| Preferred stock; $.0001 par value; 5,000,000 shares authorized; none issued and outstanding, respectively | 0 | 0 |
| Common stock; $.0001 par value; 100,000,000 shares authorized; 21,534,014 issued and outstanding, respectively | 2,153 | 2,153 |
| Additional paid-in capital | 67,750 | 67,750 |
| Accumulated deficit | (87,591) | (69,903) |
| Total stockholders’ equity (deficiency) | (17,688) | 0 |
| Total liabilities and stockholders’ equity (deficiency) | $ 0 | $ 0 |
| CONDENSED BALANCE SHEETS (Parentheticals) - $ / shares | Sep. 30, 2020 | Dec. 31, 2019 |
| Statement of Financial Position [Abstract] | ||
| Preferred stock par value (in Dollars per share) | $ 0.0001 | $ 0 |
| Preferred stock, shares authorized | 5,000,000 | 5,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock par value (in Dollars per share) | $ 0.0001 | $ 0.0001 |
| Common stock, shares authorized | 100,000,000 | 100,000,000 |
| Common stock, shares issued | 21,534,014 | 21,534,014 |
| Common stock, shares outstanding | 21,534,014 | 21,534,014 |
| CONDENSED STATEMENTS OF OPERATIONS - USD ($) | 3 Months Ended | 9 Months Ended | ||
| Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | |
| OPERATING EXPENSES | ||||
| General and administrative | $ 7,708 | $ 17,615 | $ 17,688 | $ 20,103 |
| NET LOSS | $ (7,708) | $ (17,615) | $ (17,688) | $ (20,103) |
| Basic and diluted loss per common share (in Dollars per share) | $ 0 | $ 0 | $ 0 | $ 0 |
| Basic and diluted weighted-average common shares outstanding (in Shares) | 21,534,014 | 15,647,216 | 21,534,014 | 15,647,216 |
| CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIENCY) - USD ($) | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total |
| Balances at Dec. 31, 2018 | $ 1,565 | $ 41,307 | $ (41,906) | $ 966 |
| Balances (in Shares) at Dec. 31, 2018 | 15,647,216 | |||
| Net loss | (1,117) | (1,117) | ||
| Balances at Mar. 31, 2019 | $ 1,565 | 41,307 | (43,023) | (151) |
| Balances (in Shares) at Mar. 31, 2019 | 15,647,216 | |||
| Balances at Dec. 31, 2018 | $ 1,565 | 41,307 | (41,906) | 966 |
| Balances (in Shares) at Dec. 31, 2018 | 15,647,216 | |||
| Net loss | (20,103) | |||
| Balances at Sep. 30, 2019 | $ 1,565 | 41,307 | (62,009) | (19,137) |
| Balances (in Shares) at Sep. 30, 2019 | 15,647,216 | |||
| Balances at Mar. 31, 2019 | $ 1,565 | 41,307 | (43,023) | (151) |
| Balances (in Shares) at Mar. 31, 2019 | 15,647,216 | |||
| Net loss | (1,371) | (1,371) | ||
| Balances at Jun. 30, 2019 | $ 1,565 | 41,307 | (44,394) | (1,522) |
| Balances (in Shares) at Jun. 30, 2019 | 15,647,216 | |||
| Net loss | (17,615) | (17,615) | ||
| Balances at Sep. 30, 2019 | $ 1,565 | 41,307 | (62,009) | (19,137) |
| Balances (in Shares) at Sep. 30, 2019 | 15,647,216 | |||
| Balances at Dec. 31, 2019 | $ 2,153 | 67,750 | (69,903) | $ 0 |
| Balances (in Shares) at Dec. 31, 2019 | 21,534,014 | 21,534,014 | ||
| Net loss | (1,135) | $ (1,135) | ||
| Balances at Mar. 31, 2020 | $ 2,153 | 67,750 | (71,038) | (1,135) |
| Balances (in Shares) at Mar. 31, 2020 | 21,534,014 | |||
| Balances at Dec. 31, 2019 | $ 2,153 | 67,750 | (69,903) | $ 0 |
| Balances (in Shares) at Dec. 31, 2019 | 21,534,014 | 21,534,014 | ||
| Net loss | $ (17,688) | |||
| Balances at Sep. 30, 2020 | $ 2,153 | 67,750 | (87,591) | $ (17,688) |
| Balances (in Shares) at Sep. 30, 2020 | 21,534,014 | 21,534,014 | ||
| Balances at Mar. 31, 2020 | $ 2,153 | 67,750 | (71,038) | $ (1,135) |
| Balances (in Shares) at Mar. 31, 2020 | 21,534,014 | |||
| Net loss | (8,845) | (8,845) | ||
| Balances at Jun. 30, 2020 | $ 2,153 | 67,750 | (79,883) | (9,980) |
| Balances (in Shares) at Jun. 30, 2020 | 21,534,014 | |||
| Net loss | (7,708) | (7,708) | ||
| Balances at Sep. 30, 2020 | $ 2,153 | $ 67,750 | $ (87,591) | $ (17,688) |
| Balances (in Shares) at Sep. 30, 2020 | 21,534,014 | 21,534,014 |
| CONDENSED STATEMENTS OF CASH FLOWS - USD ($) | 3 Months Ended | 9 Months Ended | ||||
| Sep. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | |
| OPERATING ACTIVITIES | ||||||
| Net loss | $ (7,708) | $ (1,135) | $ (17,615) | $ (1,117) | $ (17,688) | $ (20,103) |
| Adjustments to reconcile net loss to net cash provided by operating activities: | ||||||
| Receivable from controlling stockholder | 0 | 1,042 | ||||
| Accrued liabilities | 1,535 | 892 | ||||
| Controlling stockholder payable | 16,153 | 18,169 | ||||
| CASH FLOWS FROM OPERATING ACTIVITIES | 0 | 0 | ||||
| CASH FLOWS FROM INVESTING ACTIVITIES | 0 | 0 | ||||
| CASH FLOWS FROM FINANCING ACTIVITIES | 0 | 0 | ||||
| NET CHANGE IN CASH AND CASH EQUIVALENTS | 0 | 0 | ||||
| CASH AND CASH EQUIVALENTS, Beginning of period | $ 0 | $ 0 | 0 | 0 | ||
| CASH AND CASH EQUIVALENTS, End of period | $ 0 | $ 0 | $ 0 | $ 0 | ||
| ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | 9 Months Ended |
| Sep. 30, 2020 | |
| Accounting Policies [Abstract] | |
| Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] | 1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation Organization Use of Estimates Going Concern Subsequent Events |
| CONTROLLING STOCKHOLDER PAYABLE | 9 Months Ended |
| Sep. 30, 2020 | |
| Related Party Transactions [Abstract] | |
| Related Party Transactions Disclosure [Text Block] | 2. CONTROLLING STOCKHOLDER PAYABLE As of September 30, 2020, the Company has a payable of $16,153 to its controlling stockholder, related to advances to fund the Company’s operations. The amount is non-interest bearing and payable on demand. |
| Accounting Policies, by Policy (Policies) | 9 Months Ended |
| Sep. 30, 2020 | |
| Accounting Policies [Abstract] | |
| Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation Organization |
| Use of Estimates, Policy [Policy Text Block] | Use of Estimates |
| Going Concern, Policy [Policy Textblock} | Going Concern |
| Subsequent Events, Policy [Policy Text Block] | Subsequent Events |
| CONTROLLING STOCKHOLDER PAYABLE (Details) | Sep. 30, 2020USD ($) |
| Related Party Transactions [Abstract] | |
| Due from Officers or Stockholders, Current | $ 16,153 |
